Tylenol and Lactase drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Tylenol (acetaminophen) and Lactase (lactase). Common drug interactions include productive cough among females and malignant melanoma among males.

The phase IV clinical study analyzes what interactions people have when they take Tylenol and Lactase. It is created by eHealthMe based on reports of 98 people who take the same drugs from the FDA, and is updated regularly.

What is Tylenol?

Tylenol has active ingredients of acetaminophen. It is often used in pain. eHealthMe is studying from 222,309 Tylenol users. Check the latest studies of Tylenol.

What is Lactase?

Lactase has active ingredients of lactase. It is often used in lactose intolerance. eHealthMe is studying from 948 Lactase users. Check the latest studies of Lactase.

On Jul, 28, 2026

98 people who take Tylenol and Lactase together, and have interactions are studied.

What are the common drug interactions of Tylenol and Lactase, by gender? *:

female:

Productive cough
Sinusitis (inflammation of sinus)
Somnolence (a state of near-sleep, a strong desire for sleep)
Tenderness (pain or discomfort when an affected area is touched)
Upper respiratory tract infection
Appendix disorder
Asthma
Crepitations (noises are produced by the rubbing of parts one against the other)
Dyskinesia (abnormality or impairment of voluntary movement)
Gastrointestinal disorder (functional problems of gastrointestinal tract)

male:

Malignant melanoma (skin cancer rises from melancytes)
Haemoglobin decreased
Haematochezia (passage of stools containing blood)
Haematocrit decreased
Joint swelling
Malaise (a feeling of general discomfort or uneasiness)
Muscle spasms (muscle contraction)
Nerve compression
Peripheral swelling
Red blood cell count decreased

What are the common drug interactions of Tylenol and Lactase, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

Abdominal discomfort
Alopecia (absence of hair from areas of the body)
Crohn's disease (a condition that causes inflammation of the gastrointestinal tract)
Diarrhoea
Dizziness
Nausea (feeling of having an urge to vomit)
Respiratory failure (inadequate gas exchange by the respiratory system)

20-29:

Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
Heart valve incompetence (heart's valves do not work correctly)
Mitral valve incompetence (inefficient heart valve)
Pulmonary arterial pressure increased
Right atrial dilatation (enlargement of the right atrium chamber of heart)
Tricuspid valve incompetence (inefficient heart valve)

30-39:

Abdominal pain
Arthralgia (joint pain)
Dysuria (painful or difficult urination)
Fall
Fractured coccyx (fracture tail bone)
Hypersensitivity
Hysterectomy
Injection site erythema (redness at injection site)
Injection site pain
Injection site pruritus (severe itching at injection site)

40-49:

Agitation (state of anxiety or nervous excitement)
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Death
Dizziness
Flushing (the warm, red condition of human skin)
Heart rate increased
Hypersensitivity
Insomnia (sleeplessness)
Nightmare (unpleasant dream)
Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur)

50-59:

Rhinorrhoea (watery mucus discharge from the nose)
Sleep disorder
Weight increased
Abdominal pain
Asthenia (weakness)
Back pain
Chest pain
Contusion (a type of hematoma of tissue in which capillaries)
Decreased appetite
Diarrhoea

60+:

Fatigue (feeling of tiredness)
Arthralgia (joint pain)
Atypical pneumonia (acute respiratory disease marked by high fever and coughing)
Back disorder
Decreased immune responsiveness
Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall)
Haematochezia (passage of stools containing blood)
Haematocrit decreased
Nerve compression
Red blood cell count decreased

What are the existing conditions these people have? *

Stress And Anxiety: 13 people, 13.27%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 12 people, 12.24%
Immunodeficiency Common Variable: 11 people, 11.22%
Muscle Spasms (muscle contraction): 10 people, 10.20%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 9 people, 9.18%
Osteoporosis (bones weak and more likely to break): 9 people, 9.18%
Multiple Myeloma (cancer of the plasma cells): 7 people, 7.14%
Skin Disorder (skin disease): 7 people, 7.14%
Nausea (feeling of having an urge to vomit): 7 people, 7.14%
Joint Pain: 6 people, 6.12%

* Approximation only. Some reports may have incomplete information.

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